js/src/jit-test/tests/for-of/semantics-04.js

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 // Giving an Array an own .iterator property affects for-of.
michael@0 2
michael@0 3 load(libdir + "asserts.js");
michael@0 4 load(libdir + "iteration.js");
michael@0 5
michael@0 6 var a = [];
michael@0 7 a[std_iterator] = function* () {
michael@0 8 yield 'o';
michael@0 9 yield 'k';
michael@0 10 };
michael@0 11 var s = '';
michael@0 12 for (var v of a)
michael@0 13 s += v;
michael@0 14 assertEq(s, 'ok');
michael@0 15
michael@0 16 a[std_iterator] = undefined;
michael@0 17 assertThrowsInstanceOf(function () { for (var v of a) ; }, TypeError);

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